管法兰用非金属平垫片 第1部分：PN系列
Non-metallic flat gaskets for pipe flanges—Part 1：PN designated
2023-09-07
HG/T 20627-2009
钢制管法兰非金属平垫片(Class系列)
Non-metallic flat gaskets for use with steel pipe flanges (Class designated)
2009-02-05
HG/T 20609-2009
钢制管法兰用金属包覆垫片(PN系列)
Metal jacketed gaskets for use with steel pipe flanges (PN designated)
2009-02-05
BS EN 1514-4-1997
Flanges and their joints. Dimensions of gaskets for PN-designated flanges-Corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges
法兰及其接头 PN指定法兰用垫片的尺寸 与钢法兰一起使用的波纹、平或槽金属和填充金属垫片
1997-08-15
HG/T 20611-2009
钢制管法兰用具有覆盖层的齿形组合垫(PN系列)
Covered serrated metal gaskets for use with steel pipe flanges (PN designated)
2009-02-05
UNE-EN 1514-4-1997
FLANGES AND THEIR JOINTS. DIMENSIONS OF GASKETS FOR PN-DESIGNATED FLANGES. PART 4: CORRUGATED, FLAT OR GROOVED METALLIC AND FILLED METALLIC GASKETS FOR USE WITH STEEL FLANGES.
法兰及其接头 PN指定法兰用垫片的尺寸 第4部分:钢法兰用波纹、平或槽形金属垫片和填充金属垫片
1997-11-20
DIN EN 1514-4
Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 4: Corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges
法兰及其连接件.PN指定法兰用垫片的尺寸.第4部分:钢法兰用波纹平或槽金属和填充金属垫片；德文版EN 1514-4:1997